0 the quality of being suitable or right for a particular situation: --
the aptness of his comment
1 the quality of being likely to do something or of often doing something: --
his aptness to forget
an aptness for/at drawing
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Vi kan slutföra det steg för steg hur lång vägen än är och den kan inte slutföras hur kort vägen än är om du inte ens markerar ditt fotavtryck.